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Rainwater Harvesting Retreat Constructed with Rice Straw and Local Stone

Authors:
Anna Villars, Louis Dubrel
Rainwater Harvesting Retreat Constructed with Rice Straw and Local Stone

Project in-detail

Constructed with rice straw and local stone, this bioclimatic small house harnesses rainwater while providing a comfortable and adaptable living space that seamlessly integrates with its natural surroundings.
5 key facts about this project
01
Utilizes rice straw insulation, enhancing thermal efficiency while promoting sustainable material use Incorporates a bent A-frame design that optimizes natural light and ventilation Features a roof engineered for effective rainwater harvesting, minimizing water use Constructed with local stone, reinforcing the connection to the surrounding landscape Emphasizes an open layout that fosters adaptability for diverse living needs.
The architectural project under analysis is a thoughtfully designed small house that encompasses an area of 25 square meters. This project not only fulfills the essential needs of modern living but also emphasizes sustainable practices and the harmonious integration of architecture with the natural environment. The primary function of this dwelling is to provide a comfortable living space that supports a sustainable lifestyle, embodying principles of bioclimatic design that aim to minimize the ecological footprint.

The project's design resonates with a commitment to environmental stewardship. It showcases a range of innovative approaches centered around sustainability, such as the implementation of a rainwater harvesting system. The roof design facilitates effective water collection, channeling rainfall through a network that augments the building’s ecological responsiveness. This feature reflects a careful consideration of local climatic conditions and resource availability, embodying the essence of sustainable architecture.

Materials play a significant role in the overall composition of the design. A combination of wood, stone, clay, and rice straw have been selected, each chosen for their specific properties and cultural relevance. Wood serves as the structural framework, offering both durability and warmth to the interior spaces. The use of stone not only supports the foundation but also grounds the building within the local landscape. Clay is integrated into insulation and interior finishes to enhance the building’s thermal performance. Additionally, rice straw is utilized for its excellent insulation qualities, promoting energy efficiency while reducing the environmental impact of construction materials.

The layout of the house is particularly noteworthy, characterized by an open floor plan that maximizes the available space while creating a sense of fluidity. This arrangement encourages various uses of the living area and promotes an adaptable lifestyle. Natural light permeates the interiors through well-placed openings, which diminishes the need for artificial lighting and fosters a strong connection between residents and their outdoor surroundings. The transparent and flexible tarp allows sunlight to filter in, while simultaneously reducing heat gain—a well-thought-out feature that enhances comfort without sacrificing aesthetic value.

Unique design approaches in this project demonstrate an understanding of the delicate interplay between architecture and nature. The bioclimatic elements integrated into the design facilitate passive climate control, which helps maintain a pleasant indoor environment year-round. The strategic orientation and ventilated cladding enhance airflow throughout the structure, serving to reduce reliance on mechanical systems for heating and cooling. Such design choices highlight the potential for architecture to adapt to local climatic conditions and encourage a lifestyle aligned with environmental consciousness.

Throughout the project, there is a persistent theme of minimalism, where less is more. The aesthetic language avoids unnecessary ornamentation, focusing instead on function and harmony with the environment. The earthy color palette and textural variations of the chosen materials contribute to a calming atmosphere that is well-suited for modern living. The architectural layout effortlessly transitions indoor spaces with outdoor elements, allowing inhabitants to experience the benefits of both environments simultaneously.

As one delves deeper into the architectural plans, sections, and designs of this project, it becomes evident that thoughtful consideration has been applied at every stage of design to create a functional and sustainable dwelling. This project stands as a practical example of how architecture can meaningfully engage with landscape and resources. Interested readers are encouraged to explore the presentation of this project to gain further insights into the architectural ideas and details that define its unique character. Through examining these elements, one can appreciate the synergy between design, environment, and human experience that this small house embodies.
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100,000 € Prize Fund / Kingpsan Edition #10
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100,000€ Prize / 2025

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

Microhome

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € PRIZE FUND / KINGPSAN EDITION #10 IDEAS COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Early bird registration deadline 22 May 2025
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